【正文】 ug dosages for their patients. [D] prolong the needless suffering of the patients. 第三課時 Passage 2 Being a man has always been dangerous. There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity, and among 70yearolds there are twice as many women as men. But the great universal of male mortality is being changed. Now, boy babies survive almost as well as girls do. This means that, for the first time, there will be an excess of boys in those crucial years when they are searching for a mate. More important, another chance for natural selection has been removed. Fifty years ago, the chance of a baby (particularly a boy baby) surviving depended on its weight. A kilogram too light or too heavy meant almost certain death. Today it makes almost no difference. Since much of the variation is due to genes, one more agent of evolution has gone. There is another way to mit evolutionary suicide: stay alive, but have fewer children. Few people are as fertile as in the past. Except in some religious munities, very few women have 15 children. Nowadays the number of births, like the age of death, has bee average. Most of us have roughly the same number of offspring. Again, differences between people and the opportunity for natural selection to take advantage of it have diminished. India shows what is happening. The country offers wealth for a few in the great cities and poverty for the remaining tribal peoples. The grand mediocrity of today — everyone being the same in survival and number of offspring — means that 中國最大的管 理 資料下載中心 (收集 \整理 . 大量免費資源共享 ) 第 6 頁 共 20 頁 natural selection has lost 81% of its power in upermiddleclass India pared to the tribes. For us, this means that evolution is over。s book is intended to ________. (A) remend the views of the evolutionists (B) expose the true features of creationists (C) curse bitterly at his opponents (D) launch a surprise attack on creationists 19. From the passage we can infer that ________. (A) reasoning has played a decisive role in the debate (B) creationists do not base their argument on reasoning (C) evolutionary theory is too difficult for nonspecialists (D) creationism is supported by scientific findings 20. This passage appears to be a digest of ________. (A) a book review (B) a scientific paper (C) a magazine feature (D) a newspaper editorial Passage 3 Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly believe the term drug refers only to some sort of medicine or an illegal 中國最大的管 理 資料下載中心 (收集 \整理 . 大量免費資源共享 ) 第 9 頁 共 20 頁 chemical taken by drug addicts. They don39。s like surgery, he says, We don39。s best, its workers the most skilled. America and Americans were prosperous beyond the dreams of the Europeans and Asians whose economies the war had destroyed. It was inevitable that this primacy should have narrowed as other countries grew richer. Just as inevitably, the retreat from predominance proved painful. By the mid1980s Americans had found themselves at a loss over their fading industrial petitiveness. Some huge American industries, such as consumer electronics, had shrunk or vanished in the face of foreign petition. By 1987 there was only one American television maker left, Zenith. (Now there is none: Zenith was bought by South Korea39。s God. came the reply, but sometimes he thinks he39。 pain. [B] it is still illegal for doctors to help the dying end their lives. [C] the Supreme Court strongly opposes physicianassisted suicide. [D] patients have no constitutional right to mit suicide. 57. Which of the following statements is true according to the text? [A] Doctors will be held guilty if they risk their patients39。 life expectancy has nearly doubled over the past century. Failing hips can be replaced, clinical depression controlled, cataracts removed in a 30minuts surgical procedure. Such advances offer the aging population a quality of life that was unimaginable when I entered medicine 50 中國最大的管 理 資料下載中心 (收集 \整理 . 大量免費資源共享 ) 第 10 頁 共 20 頁 years ago. But not even a great healthcare system can cure deathand our failure to confront that reality now threatens this greatness of ours. Death is normal。re a physician, you can risk your patient39。s industrial decline. Their sometimes sensational findings were filled with warnings about the growing petition from overseas. How things have changed! In 1995 the United States can look back on five years of solid growth while Japan has been struggling. Few Americans attribute this solely to such obvious causes as a devalued dollar or the turning of the business cycle. Self doubt has yielded to blind pride. American industry has changed its structure, has gone on a diet, has learnt to be more quick witted, according to Richard Cavanagh, executive dean of Harvard39。s Kennedy School of Government. It makes me proud to be an American just to see how our businesses are improving their productivity, says Stephen Moore of the Cato Institute, a think tank in Washington, DC. And William Sahlman of the Harvard Business School believes that people will look back on this period as a golden age of business management in the United States. 1. The . achieved its predominance after World War II because ________. [A] it had mad